mruby/mruby — pull request #905 by kouki-o-iij (2013-02-28 02:17:43+00:00)
Title: Regexp: %r notation bug fix.

be able to parse any delimiters.
variable expansion isn't supported yet.

* sample code
```
def matchpath(str)
puts "#{str} is ..."

if %r!img/! =~ str then
puts "match"
else
puts "not match"
end
end

matchpath("img/a.png") # => match
matchpath("/usr/local/bin") # => not match
matchpath("book/img/local") # => match
```